Is there an easy way to remember the ways of converting atoms, moles, and grams to one another? i have a difficult time remembering the formulas.

The number to the right of an element's symbol (ex. c-12) identifies the of an isotope.

Which reason best explains why metals are malleable? a)because they have delocalized electrons b)because they have localized electrons c)because they have ionic bonds d)because they have rigid bonds

How many moles are contained in 5.6 l of h2 at stp